Why did the crew of Apollo 13 need to make alterations to the filters/scrubbers so that they would fit into the lunar module?

Question

Accepted Answer

They remove CO 2  from the air.

Answer

They produce O 2  that the crew was running out of.

Answer

All of the answers are correct.

Answer

They did not want to leave any equipment behind once they jettisoned the service module.

Answer

N.A.S.A. needed to keep the astronauts busy so they would not get hypothermia.

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